Additional Solace PubSub+ logging [solace/solace-pubsub-standard]

We need some additional information to be able to determine when we can execute solace configuration using cli.
You can see the example here:
testcontainers-java/SolaceContainer.java at main · testcontainers/testcontainers-java
Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker containe… For now we are checking system.log file in a loop to verify solace readiness and then we’re executing configuration script.